Protocols And Standards; Qinq Configuration Task List - HP 6125G Configuration Manual

The device determines whether a received frame carries an SVLAN or CVLAN tag by checking the TPID
value. For example, if a frame carries an SVLAN tag with TPID value 0x9100 and a CVLAN tag with TPID
value 0x8100 and the configured TPID value of the SVLAN tag is 0x9100 and that of the CVLAN tag is
0x8200, the device considers that the frame carries only the SVLAN tag but not the CVLAN tag.
Devices of different vendors may set the TPID of the outer VLAN tag of QinQ frames to different values.
For compatibility with these devices, modify the TPID value so that the QinQ frames, when sent to the
public network, carry the TPID value identical to the value of a particular vendor, allowing
interoperability with the devices of that vendor.
The TPID in an Ethernet frame has the same position as the protocol type field in a frame without a VLAN
tag. To avoid problems in packet forwarding and handling in the network, do not set the TPID value to
any of the reserved values.
Table 20 Reserved protocol type values
Protocol type
ARP
PUP
RARP
IP
IPv6
PPPoE
MPLS
IPX/SPX
IS-IS
LACP
802.1X
Cluster
Reserved

Protocols and standards

IEEE 802.1Q: IEEE standard for local and metropolitan area networks: Virtual Bridged Local Area
Networks

QinQ configuration task list

When you configure QinQ, follow these guidelines:
QinQ requires configurations only on the service provider network.
•
QinQ configurations made in Ethernet interface view take effect on the interface only. Those made
•
in Layer 2 aggregate interface view take effect on the aggregate interface and all member ports in
the aggregation group.
• Do not configure QinQ on a reflector port. For more information about reflector ports, see Network
Management and Monitoring Configuration Guide.
Value
0x0806
0x0200
0x8035
0x0800
0x86DD
0x8863/0x8864
0x8847/0x8848
0x8137
0x8000
0x8809
0x888E
0x88A7
0xFFFD/0xFFFE/0xFFFF
157